Patented (US patents 6,052,053 and 6,205,408) Dual Wire Wrist Strap provides redundancy - Even if one dual wire wrist strap conductor is severed, operator has reliable path-to-ground with other wire Mono plug designed to be used with a dual-wire wrist strap monitor. Not compatible with banana plug grounds. Use with resistive loop technology continuous monitor - continuously verifies the proper resistance to ground of the operator Solid stainless steel wrist band stud machined to exacting tolerances and precise profile - ensures reliable path-to-ground connection to spring loaded 4mm stainless steel constant contact coil cord snap Fixed sized bands available in three sizes Premium metal expansion wrist strap with more reliable path-to-ground* Comfortable, designed not to pinch or pull hair Durable metal band is long wearing, easy to clean Superior contact with skin for reliable removal of generated static charges Non-flaking or scratching laminated insulator on all external surfaces - Protects wearers from electrical hazards; provides many years of product life Medical grade 300 series stainless steel used for all metal parts - Eliminates allergic skin reaction for most people Superior resistor connection strain relief for superior reliability. Greatly exceeds ESD S1.1 Bending Life Test. Tested at over 11,000,000 cycles vs. the 16,000 requirement UL listed when used with Jewel® coil cords Lifetime warranty on our wrist band stud Made in America What the ESD Association says about wrist straps:
* "Note: Metal expansion bracelet style wrist cuffs may trap moisture underneath and can be more effective for people with dry skin." [ESD Handbook TR20.20 section 5.3.2.4.3]
Per ESD Handbook TR20.20 section 5.3.9.1 Wrist Strap Checkers - “Wrist strap checkers have historically been the primary tool for testing the operation of the wrist strap system including, the wristband, grounding cord and most importantly, the electrical integrity of the contact between the wristband and the wearer. Wrist strap checkers measure the resistance of the entire system.”